Judges 21:15

Jdg 21:15 And the people repented them for Benjamin, because that the LORD had made a breach in the tribes of Israel.

Ver. 15. And the people repented them for Benjamin. ] Being very sorry that they were constrained to execute justice so sharply. Non nisi coactus, said that Emperor, when he passed sentence of death upon one who had well deserved; that is, I do it not but unwillingly. Utinam nescirem literas, said another: I would I could not write, when he was to sign a writ of execution.

“ Ille dolet quoties cogitur esse ferox. ” - Ovid.

Justice should be done, but not without much compassion. The sword of justice must be bathed in the oil of mercy.